baber/WOPTO huggingface dataset:
Patent GB-531696-A (GB)
Title: Improvements in reciprocating suction pumps
IPC: F04B9/10
Filed: 1939-07-17
Abstract: 531,696. Reciprocating pumps. ROBINSON, E. M. B. July 17, 1939, No. 20715. [Classes 102 (i) and 102 (ii)] A reciprocating suction pump for water or other liquids has an air inlet 13 in its suction pipe 7 so that this may be longer than is possible without air. The amount of air admitted is regulated by the nearness of the inlet 13 to the surface 9 of the water but a valve 14 may also be used. The pump comprises a cylinder 2 and piston 3 having its rod 4 enclosed in a fluid-tight bellows 15. The lower end of the cylinder is connected to the suction pipe 7 and an outlet pipe 5 through non-return valves 10, 6. A cylinder 17 is similarly connected to suction and outlet pipes 7, 20 and the upper ends of the cylinders are connected by a pipe 16. Non- return head-valves 23 and a lower inlet valve 11 may also be fitted.
Patent GB-170096-A (GB)
Title: Improvements in and relating to thermionic valves
IPC: C03C27/04
Filed: 1920-07-10
Abstract: 170,096. Macrorie, A. K., Airey, H. Morris-, Shearing, G., and Mullard, S. R. July 10, 1920. Vacuum tubes. - A leading-in conductor for a filament or other electrode of a thermionic valve is made of non-uniform diameter so as to enable a larger current to be carried by the conductor through a lead or other metal seal. As shown, the conductor A is made of smaller diameter where it is sealed into a silica tube T, and metal seal B. A silica tube D may be arranged around the conductor. In another arrangement, the conductor is of smaller diameter only at the part in contact with the metal seal, and the silica tube T makes an easy fit with the conductor. Specifications 170,097 and 170,634 are referred to.
Patent GB-148972-A (GB)
Title: Sending device for subaqueous sound signals
IPC: G01S1/72
Filed: 1920-07-10
Abstract: 148,972. Signal Ges. Feb. 6, 1915, [Convention date]. Subaqueous audible signals.-Osscillations are communicated to a radiating-member B, such as a diaphragm or part of a ship's hull, by a system of two masses G<1>, G<2> connected by one or more longitudinally vibrating rods or tubes E. The exciting agent may be an alternating-current magnet M, and one or both of the masses G<1>, G<2> may form part of the magnetic system, but mechanical excitation may also be employed. By making the mass G<2> large compared with G<1>, the amplitude of oscillation is greater at the point of excitation than at the diaphragm B. The mass G<2> may be connected direct to the diaphragm B, or may be more or less loosely coupled, for example by means of a transverse spring, or by means of an elastic red K. If it is desired to introduce additional damping, the rod K may be made of some material, such as lead, having large internal friction.
Patent GB-1175334-A (GB)
Title: Fastening Device for Windows.
IPC: E05C17/18
Filed: 1968-05-02
Abstract: 1,175,334. Fastening device for windows. PRODIECO Ltd. 2 May, 1968, No. 20878/68. Heading E2F. An adjustable fastening device for a hinged window has a longitudinal slide arm 1 pivotally connected at one end to the window sash by a bracket 2. The slide arm 1 has a longitudinal slot cut in its innermost side made up of straight line portions which join hole portions. The slot engages a guide pin secured to the window frame 4 so that the slide arm 1 is maintained in restrained longitudinal slidable engagement. At the predetermined hole positions on the slide arm 1 a pivotal downward movement of the slide arm towards the guide pin will releasably lock them together by the wedging action between the edge of the hole portion on 1 and the surface of the truncated cone portion of the pin. The unsupported end of 1 forms a handle 12 which may be engaged by a catch member 13 on the window sash 3 when the window is fully closed.
Patent GB-208906-A (GB)
Abstract: 208,906. Stobart, H. J. S., and Lane, G. T. Dec. 20, 1922. Lighthouse and like lamps. -In lamps for lighthouses and the like having a revolving dioptric system, a rotating electric incandescent filament lamp is employed as the source of illumination. The lamp is carried on a spindle b journaled in ball bearings h in a support and is rotated either by an independent motor c arranged in the base of the support or by the mechanism which rotates the dioptric system. Current is conveyed to the lamp through the medium of slip-rings e on the spindle b and brushes f on the support. Specification 5687/81 is referred to.
Patent GB-252941-A (GB)
Title: Improvements in or relating to electric condensers
IPC: H01G5/38
Filed: 1925-08-20
Abstract: 252,941. Rogers, F. H., (Carlisle A. H., and Emerson. A.). Aug. 20, 1925. No Patent granted (Sealing fee not paid). Condensers of the variable type comprise fixed and movable plate sets each cast in one piece and carried between a pair of insulating end plates to which the fixed plate set is secured. The movable plate set is supported at its ends by means of conical or other self-centring bearings, the members of which are held in engagement by spring pressurre so as to prevent lateral play of the movable plate set and to ensure invariability of the capacity corresponding to a particular setting. The stator of a unitary construction, preferably obtained by die casting, is supported between end plates, and the rotor unit is mounted on the shaft 14 formed with a tapered part 19 which is receivable by the conical seat 18 of a bearing 15, and with a conical seat 22 receiving the seat 21 of a bearing 20, whereby the shaft is axially and radially adjusted. The adjustment is effected by mounting the bearing 20 on a spring 23 attached to one end plate, the spring having slots a, b dividing it into a central part c, attached to the shank 28 of the bearing 20, and exterior parts d, e, whereby the stress is evenly distributed. In order to obtain a line contact between the bearing parts, the bearings 18, 19 and 21, 22 may be formed with a differing degree of taper, and instead of the straight-sided tapers shown other contours giving a line contact may be used. In casting the rotor plate set, the plates are cast about the shaft 14 which is of a metal, for example steel, having a higher boiling- point than the metal of the plates, and is preferably roughened as at 41 in Fig. 1 for effective securement of the plates thereto. The intermediate part of the shaft may also be reduced to facilitate the flow of metal during casting, and a shoulder 40a, Fig. 1, may be provided to limit the endwise movement of the shaft and prevent straining of the spring. The plates may be shaped to give a low minimum capacity and a gradually-increasing rate of increase as the movable plates are rotated. In the modification shown in Fig. 5, the shaft 45 is journaled in bearings 48, 49 in the end plates 46, 47, to the latter of which is fixed the stator. The resilient mounting of the rotor is effected by compression springs 57 surrounding securing means 54 inserted in bosses 54 on the stator casing. To compensate for shrinkage, the end plates are moulded with elongated orifices arranged in a radial direction so that proper alignment and centring can be obtained when assembling the parts. Further, to avoid depending or securing screws for positioning the parts, mortise 67 and tenon means 66 may be used in the end plates and casting as shown in Fig. 13, the securing elements 13<1> being inserted in, preferably elongated, orifices 63<1> - - 65<1>. In order to minimize dielectric losses, the spring may be mounted in the end plate so that the dielectric of the end plate is removed from the field between the spring and condenser plates.
Patent GB-771725-A (GB)
Title: Improvements in or relating to bearings for rollers or other rotary members, with special reference to endless track vehicles
IPC: B62D55/15
Filed: 1955-07-20
Abstract: 771,725. Cylindrical bearings. HALL, C. P. July 20, 1955, No. 20965/55. Class 12 (1). A roller 1 has a bore lined with a fibre sleeve 9 through which a spindle 5 passes, and the end faces of the roller 1 are recesses to receive annular fibre facings 11 secured to steel sleeves 13 forming end covers for the bearing. The spindle 5 is free to rotate at its ends on bushes 7 mounted in the machine frames 3 and a fixed rod 2 passes through the end bushes 7 and spindle 5. Springs 15 urge the facings 11 towards the roller 1 so as to seal the ends of the bearing 9. Bolts 16 prevent rotation of the sleeves 13 on which the fibre facings 11 are mounted.
Patent GB-576485-A (GB)
Title: Means for tuning magnetrons
IPC: H03J3/00
Filed: 1943-12-14
Abstract: 576,485. Magnetrons. PATELHOLD PATENTVERWERTUNGS- & ELECTROHOLDING AKT.-GES. Dec. 14, 1943, No. 20970. Convention date, Nov. 13, 1942. [Class 39 (i)] Magnetron of the kind having the interdigitated segments 2, Fig. 1, connected alternately to the sides of a hollow resonator 3 is tuned by plates 4 moved radially by connection to bimetallic strips 5 which are heated electrically, either directly or indirectly, to provide the desired adjustment. To eliminate the effect of ambient temperature variations, two strips may be used disposed so as to bend in opposite directions, and only one of which is heated to the adjusting temperature, Fig. 3 (not shown): The arrangement shown in Fig. 4 provides a coarse adjustment by means of the strip 17 which is heated by the circuit 18, 19, and a fine adjustment by means of the strip 21, the temperature of which is regulated by a device 20 which may be automatic. In the case of direct heating, the necessity of flexible leads is avoided by bending the strip into narrow U-shape, 24, Fig. 5, and fixing the free ends, the tuning device being connected to the bend. This arrangement comprises also a heating circuit including a resistance 22 and condenser 23 in parallel which is stated to prevent lag in the response of the strip to temperature changes. In a modification, Fig. 2 (not shown), the tuning device consists of a bimetallic sheet wound spirally around the segments 2. The Specification as open to inspection under Sect. 91 describes also an oscillator of the velocity modulation type comprising a single resonator 10, Fig. 3 (Cancelled), with velocity modulating grids 7 and energy absorbing grids 8. The tuning members 12 are carried by bimetallic strips 11. This subject-matter does not appear in the Specification as accepted.
Patent GB-1503616-A (GB)
Title: Automatic firing weapon with an ammunition conveyor channel
IPC: F41A9/29
Filed: 1975-05-16
Abstract: 1503616 Belt feed mechanisms for automatic guns WERKZEUGMASCHINENFABRIK OERLIKON-BUHRLE AG 16 May 1975 [16 May 1974] 20990/75 Heading F3C Belted ammunition 107 is supplied to an automatic firing weapon 100 through a conveyer channel 102 comprising an inlet opening 62 through which the belted ammunition is introduced, a first outlet opening 6 through which the ammunition is introduced into the weapon barrel 101, and a second outlet opening 63 through which belt elements 46 are ejected, the opening 63 being located in a cover member 61 which is pivotable about a shaft 40 external of the channel to allow removal of ammunition from the channel which has not been ejected through the opening 6. As shown, the cover member 61 comprises a frame 32 of four walls 33-36 and a plate 37, a nose member 38 of which is engageable with a groove 9 in a wall 5 of the channel. The cover member 61 is secured against unintentional opening by a dog 43 attached to a pivotal cover member 29 of the channel. A deflection element 42 attached to plate 37 serves to guide ammunition into the weapon barrel. The channel incorporates guide arms 21 biased by a spring 24 and having grooves 23 which engage flaps 47 of belt elements 46. The cartridges 45 are raised by means not shown and are prevented from falling back by means of pawls 17. Channels 102 may be provided one on either side of the weapon barrel and these may take different types of ammunition.
Patent GB-1472875-A (GB)
Title: Electrically addressed apertured modular for electrostatic printing
IPC: B41J2/415
Filed: 1974-05-13
Abstract: 1472875 Printed circuits; component assemblies ELECTROPRINT Inc 13 May 1974 [11 May 1973] 21161/74 Heading H1R Means for modulating the flow of charged particles for use in non-contact electrostatic printing comprises a substrate 31 having a continuous conductive coating 12, as shown earthed, on one side, and on the other side individual conductive coatings 33 round each of a plurality of apertures 35, each conductive coating 33 having associated therewith a lead conductor strip providing a connection between it and a terminal contact on the substrate remote from the aperture. By appropriate circuitry, the apertures can be individually addressed, the magnitude of the field in a particular aperture determining the modulation of particles from corona wire 38 and accordingly the extent to which ink particles in the form of an uncharged mist become charged and attracted on to print medium 41 moving continuously transverse to the flow of charged particles. As shown in Fig. 6, two rows of such apertures, here referenced 54, have leads 56 extending in opposite directions, and so that terminals 57 can be more widely spaced than the closely spaced apertures 54, sections 56c of leads 56 leading to the terminals are inclined, e.g. at right angles to sections 56a leaving the apertures. As shown terminals 57 are in groups of two parallel rows. Preferably the substrate is flexible and by cutting a flap 63 around each group of terminals and folding the flap along a line between the two rows, the flap can be wedged by bar 62 between the bifurcate contacts 64 of a printed circuit edge connector 60 (Fig. 7). Each such edge connector is associated with a printed circuit card bearing control circuitry. As shown in Fig. 8, the flexible substrate is supported on two sides of a mounting assembly so that the two rows of apertures lie along the peak of crest 74, crest support 75 carrying corona wire 70 and the outer surface of the substrate being the one which is completely metallized. The mounting assembly includes wedging bars 62 and printed circuit cards 80a, 80b are insertable alternately from adjacent side surfaces of the assembly.
Patent GB-256406-A (GB)
Title: Improvements in tobacco pipe plugs or filters
IPC: A24F5/08
Filed: 1925-08-25
Abstract: 256,406. Siviter, W. W. Aug. 25, 1925. Tobacco pipes. - A plug for tobacco pipes comprises a hollow 'body 1 of perforated metal or of wire. gauze, the sides 2 of which may be bent outwards to permit the insertion within the plug of an absorbent pellet, preferably of paper.
Patent GB-263439-A (GB)
Title: Improvements in or relating to glass preserve jars
IPC: B65D51/16
Filed: 1926-08-28
Abstract: 263,439. Kessler, H., and Kessler, W. Aug. 28, 1926. Vacuum closures. -The cover b of a glass preserve jaw is provided with an aerating screw d tightly applied to the cover by a nut g, the screw having an axial bore e closed by a screw cap h. Removal of the cap h permits atmospheric air to enter the jar to facilitate removal of the cover.
Patent GB-315578-A (GB)
Title: Improvements in and relating to diaphragms for acoustic devices
IPC: H04R7/14
Filed: 1928-07-23
Abstract: 315,578. British Thomson-Houston Co., Ltd., and Ault, L. B. July 23, 1928. Diaphragms ; magnetic instruments. - An acoustic diaphragm comprises a cone 1, of light material such as paper, provided with concentric or spiral corrugations 2, and radial strips 3 secured to the top of the corrugations on each side of the diaphragm to obtain rigidity. The aluminium cone spiders 4 form means of connection to the vibrating element. Specification. 248,433 is referred to.
Patent GB-1496209-A (GB)
Title: Refuse compactor
IPC: B65F1/06
Filed: 1975-05-19
Abstract: 1496209 Refuse containers GENERAL ELECTRIC CO 19 May 1975 [5 June 1974] 21282/75 Heading A4A [Also in Division B8]  A refuse container for use in a refuse compactor may be mounted in the compactor by releasable means 20 including a clamp ring 26 for encircling the mouth of the container 10, provided with a carrying handle 38 and means (40) for engagement with mounting means on a door of the compactor (not shown). A flange member 22 defines a downwardly facing channel 24 for cooperation with supporting means on the door for the lower part of the container 10, while the engagement means (40) includes legs (46) for engagement with means on the door and a projection (44) to prevent rotation of the container 10. The releasable means 20 includes an over-centre latch 30, the ring 26 being preferably of aluminium or steel, while the container 10 is of moulded polymeric resin. The holding means 20 may further serve to clamp a plastics bag within the container 10.
Patent GB-142011-A (GB)
Title: Improvements relating to automobile wind screens
IPC: B60J1/04
Filed: 1919-08-29
Abstract: 142,011. Rossi, A. G. Aug. 29, 1919. Pivot adjustments; hinge, pivot, and joint pins.-A wind-screen for motor-cars is provided with detachable pivot pins 4 mounted in the fixed supports 2 and engaging by means of pins 5, 6 with corresponding holes in the movable screen member 1. The screwed pin 5 has an end member 5<1>, whereby it can be readily operated to lock the screen in its adjusted position. In a modification, the pins 6 are not used, a projecting boss on the pivot member 4 engaging with a corresponding circular recess in the member 1. The pivot or plug 4 may also be provided with a spring adapted normally to force it into engagement with the member 1. The arrangements described are designed to facilitate the disconnexion of the screen.
Patent GB-298276-A (GB)
Title: Improvements in or relating to apparatus for the electrical transmission of sound from gramophone records
IPC: G11B17/02
Filed: 1927-04-07
Abstract: 298,276. Pearson, L. H. April 7, 1927. Divided on 298,249. Preventing reproduction from pickup when record speed is too low.-In reproduction from records by an electrical pick-up, a governor control driven from the turntable drive operates automatically to prevent transmission during speeding up and slowing down of the drive. As shown, a governor GS driven from the spindle of the turntable G maintains contacts C C' in the circuit of the pick-up P closed only when the turntable is running at a suitable speed. In a modification, the contacts C C' are normally closed and connected in a circuit shorting a transformer in the output circuit so that no sound current passes until the contacts are separated by the governors. Specification 293,483, [Class 4.0 (iv), Telephones &c.], is referred to.
Patent GB-722950-A (GB)
Title: Process for the preparation of derivatives of furan-carboxylic acid substituted in the 5-position
IPC: C07D307/68
Filed: 1952-08-26
Abstract: 5 - Cyanomethyl - and 5 - (cyanoethyl) - pyromucic acid alkyl esters are hydrogenated to give the corresponding 5-aminoalkyl derivatives by treating with hydrogen in the presence of a hydrogenation catalyst, e.g. the noble metals of Group VIII of the periodic table. Alcohols may be used as solvents and especially the alcohol furnishing the pyromucic ester.  The products are precipitated by forming the oxalic acid salts.  In an example, 5-cyanomethylpyromucic acid ethyl ester is treated with hydrogen using palladium-barium sulphate as catalyst.
Patent GB-1103814-A (GB)
Title: A method of winding a dynamoelectric machine stator core member
IPC: H02K15/085
Filed: 1966-05-16
Abstract: 1,103,814. Winding stators. FORT WAYNE TOOL & DIE Inc. 16 May, 1966 [3 Sept., 1965] No. 21552/66. Heading B3A. The winding of a stator core 6 is facilitated by tooth extension members 17 which are remov. ably secured to the ends of adjacent teeth 8 to define an extension of the slot 11 therebetween during the winding and removed after the winding. The main windings 12 of the stator are wound in a conventional manner and covered with insulation 14. The tooth extension members 17 are resiliently clipped over the enlarged tooth ends 10a and the wire dispensing needle 16 reciprocated through the stator core by the head 15 to lay the starting coil 13. The members 17 are formed of thin-gauge spring metal, e.g. spring steel. Any bulging 21 of the coil is forced into the slots by slot wedges (22) after completion of the winding, Fig. 5 (not shown). The tooth extension members may be used in the gun-type winding machine described in Specification 929,839.
Patent GB-403596-A (GB)
Title: Improvements in or relating to casings for rotary piston engines
IPC: F04C2/08
Filed: 1933-08-01
Abstract: 403,596. Rotary engines. SIEPER, F., 65, Schwelmerstrasse, Langerfeld, Wuppertal, Germany. Aug. 1, 1933, No. 21604. [Class 110 (ii).] The casing of a rotary engine or pump is formed of one or more rings g, h, formed by the helical windings of strips of flexible material and securing the ends by a bolt b. Fig. 3 illustrates the invention as applied to a gear pump. The lateral dimension of the ring g is greater than that of h, and the latter is wider than the gear c, these differences being small. One of the rings may be under external pressure as by a rubber ring or under pressure of the delivery fluid from the pump. The inner convolution of the ring bears on the edges of the gears and automatically presses inwards to take up wear.
Patent GB-911999-A (GB)
Title: Acoustic duct and panel construction therefore
Inventor: BOURNE ROLAND BARDEEN
IPC: E04B1/82
Filed: 1961-06-15
Abstract: 911,999. Sound-absorbing panels. AMERICAN MACHINE & FOUNDRY CO. June 15, 1961, No. 21642/61. Class 64 (2). [Also in Group XXVII] In a sound-absorbing device a hollow panel which can be packed with a sound-absorbing material has a pair of generally longitudinallyextending side walls, at least one of which is acoustically transparent, a pair of acoustically opaque end walls respectively connected to the opposite ends of the side walls, acoustically opaque top and bottom wall means closing the openings defined by said side walls and end walls and an acoustically opaque partition disposed within the panel extending between the top and bottom wall means. In a concrete acoustic gas duct of rectangular cross-section, particularly for use in jet-engine test cells, two rows of side panels 42 and at least one row of intermediate panels 44 extend generally longitudinally and between the duct top and bottom walls to define sinuous channels 40. Each panel 44 has two acoustically transparent and preferably perforate side walls 46 and acoustically opaque and preferably imperforate top, bottom and end walls 54 which are welded to the side walls 46. Acoustically opaque and preferably imperforate partitions 56 and 60 are provided within each panel 44 to provide satisfactory sound attenuation over a broad range of frequencies. The construction of the panels 42 is similar to that of the panels 44. The sinuous shape of the passageways prevents " beaming " of high-frequency waves. The partitions 60 also serve to strengthen the panels. The panels 42 and 44 are packed with sound-absorbing material, e.g. glass wool, preferably with a layer of higher density adjacent the acoustically-transparent side walls. Curved sheet metal fairings 72 are placed over the end walls 54 and 54b exposed to the gas stream. The panels 44 can be stacked atop each other. Another embodiment provides panels shaped in the form of parallelograms and arranged end-to-end in a zig-zag form, each panel having only one partition, which forms the small diagonal, and being packed with sound-absorbing material of uniform density. Further embodiments provide rectangular panels arranged end-to-end to form straight passageways, each panel having a single partition arranged either as a diagonal or extending generally diagonally from a point on one end of the panel spaced from one side to a point at the other end spaced from the other side.